Clamp for holding glass plates.



P ATENTTD TBB. 19, 1907.

Lr GALLDT. CLAMP FOR HOLDING GLASS PLATES. APPLICATION FILED ocT.2a, 1906.

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THE NuRRls PETERS cu.. wAsHmnvoN,

Urn sTaTns PATENT Trione.

LOUIS GALLOT, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO GRAND RAPIDS SHOW CASE COMPANY, OF GRAND RAPIDS, MICHIGAN, A CORPORATION OF MICHIGAN.

Specification of Letters Patent.

Patented Feb. 19, 1907.

Application tiled October 23, 1906. Serial No. 340,181.

To @ZZ whom it may cuan/cern:

Be it known that I, LoUrs GALLoT, a citi zen of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Clamps for Holding Glass Plates; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in clamps for holding glass plates, and more particularly to the plates of-show-cases; and its object is to provide the same withvarious new and useful features hereinafter more fully described, and particularly pointed out in the claims, reference being had to the accompanying drawings, in which- Figure 1 is a perspective showing my device applied to a portion of each of two glass plates, as shown on the outside of the same; Fig. 2, the same as shown on the inside of the same; Fig. 3, a horizontal section on the line 3 3 of Fig. 1; Fig. 4, a vertical section on the line 4 4 of Fig. 3; Fig. 5, a vertical section of the clamps detached and shown on the line 5 5 of Fig. 3, and Fig. 6 avvertical section on the line 6 6 of Fig. 3.

Like numbers refer to like parts in all of the figures.

1 and 2 represent portions of glass plates forming a portion of a show case, window, or other like structure, and arranged substantially at right angles to each other.

3 is a sheet-metal clamp folded in U-shape to embrace the edge of the plate 2, which edge is recessed, as at 10, to receive the clamps and abuts against one side of the plate 1 near the edge thereof. This clamp 3 on the inner side is reinforced by a plate 4 and perforated, as at 14, to receive a stud 8, provided with a thumb-nut 9, and is also perforated at 13 to receive a lug 12, which engages a groove 11 in the plate 2, and thus secures the clip in place on the plate. This lug is preferably of soft metal and pressed into place in the clamp and recess, and the recess is preferably a groove cut in the glass with the round edge of a grinding-wheel in stead of a drill, the wheel being preferable, for that it is not so likely to break theglass as is a drill. Opposite this clamp 3 is a clamp 5, also of sheet metal, embracing the edge of the plate 1 and secured thereto by means of a like groove 11 in the plate and soft-metal lug 12. This clamp is prolonged at right angles, as at 6, to engage and overlap the reinforced portion 4 of the other clamp, and this prolongation is provided with a vertically-elongated opening 7 to receive the bolt 8. The thumb nut 9 is turned down upon this extension to bind the same in place and hold the plates in proper relation to each other. The recess 10 in the plate 2 is of suflicient depth to receive both clamps 3 and 5 and permit the edge of the plate 2 above and below the recess to properly engage the side of the plate 1.

By means of this device I am able to securely hold two glass plates in proper relation to each other without the necessity of extending any strips of metal across the edge of the same and am able to verticallyadjust them to properly bring their edges in the same plane. By this means I am also able to secure these plates to each other by means whereby they may be readily connected and disconnected as often as occasion may require. I am also able to avoid the necessity of drilling holes in the glass for rivets or screws, which is expensive and difficult and very liable to break or chip the glass.

What I claim is- 1. In combination with two glass plates arranged with the side of one plate opposite the edge of the other plate, a U-shaped clamp embracing the edge of each plate and secured thereto, an extension on the end of one member of the clamp on the first-named plate and at an angle therewith, and means for detachably securing said extension to the inner member of the other clamp.

2. In combination with two glass plates, a U-shaped clamp embracing the edge of each plate and secured thereto, a stud 'fixed in one member of one clamp, an extension at one end of one member of the other clamp, and having an opening to receive the stud, and a nut on the stud to engage said extension and bind it against the clamp member having said stud therein.

3. The combination of two glass plates arranged at right angles, one plate having its edge abutting against the side of the other plate and also having a recess in said edge to IOO receive the clamps, clamps embracing the and a nut on the stud to engage said eXtenedges of the respective plates and secured sion. 1o

thereto by soft-metal lugs, said lugs being In testimony whereof I aHX my signature inserted in openings in said clamps and enin presence of tWo Witnesses.

gaging grooves in said plates, a screW-thread'-V LOUIS GALLOT. ed stud in one clamp, an extension on the Witnesses: other clam and at right angles thereto, said Y LUTHER V. MoULToN,

extension a so having a slot to receive the stu-d PALMER A. JONES. 

